16 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.61. 



sides narrowly flattened and regularly arcuate, with the margin 

 feebly crenulate; anterior margin bisinuate, with the median lobe 

 broadly rounded; base strongly bisinuate, with the median lobe 

 broadly rounded in front of scutellum ; lateral carina arcuate, reach- 

 ing from posterior angle to apical third, but not touching the lateral 

 margin; disk strongly convex anteriorly, with a rather deep depres- 

 sion on the inside of the lateral carina, becoming broader posteriorly 

 and reaching along the base ; surface rather densely punctate, finely 

 reticulate and sparsely clothed with short inconspicuous black and 

 cinereous pubescence. Scutellum large, triangular, dark green ; sur- 

 face finely reticulate. Elytra at base about equal in width to pro- 

 notum at middle, rather convex, with a shallow depression at base 

 and another along lateral margin behind the humerus; sides feebly 

 sinuate and nearly parallel to middle, expanded at apical third, then 

 arcuately attenuate to the tips, which are separately rounded and 

 finely dentate; surface rather coarsely imbricate, sparsely clothed 

 with inconspicuous recumbent black hairs and each elytron marked 

 with a series of sparsely placed, short white hairs, as follows : A dis- 

 tinct transverse zigzag band at apical fourth, a narrower transverse 

 one near the apex, joining the anterior one along the suture. Abdo- 

 men finely reticulate, last segment deeply arcuately grooved along the 

 apical margin. 



Length, 6.25 mm. ; width, 2.5 mm. 



Tyye locality. — Kolambugar, Mindanao, Philippine Islands. 



Type.— C^ii. No. 24663, U.S.N.M. 



Described from a unique specimen collected by Prof. C. F. Baker, 

 at Kolambugar, Mindanao, Philippine Islands. 



This species is allied to Samhus ornatus Fisher and Samhus con- 

 fusus Fisher, but it can, however, be distinguished at once from either 

 of these species by its larger size and by the absence of distinct 

 cinereous pubescence on the anterior half of the elytra. 



NEOSAMBUS CYANEUS. new species. 



Elongate, robust, and strongly convex, shining; head blue, becom- 

 ing brassy on the front ; pronotum and elytra bright blue ; scutellum 

 brassy ; beneath shining black, with a bluish tinge, becoming more 

 pronounced toward the sides, glabrous except for a few scattered 

 hairs on prosternum and last abdominal segment. 



Head with the front wide, strongly convex, feebly gibbose on the 

 vertex, with a feeble longitudinal median groove on vertex and oc- 

 ciput, becoming obsolete on middle of front; surface strongly strigose, 

 the strigae transverse on the front and becoming concentrical on the 

 gibbosities; intervals with moderately large, shallow punctures; epis- 

 toma transverse, anterior margin broadly, but not deeply, arcuately 

 emarginate, the angles extending beneath the antennal cavities ; cly- 



